<?php
echo "<br>";

echo ceil(2.336);
echo "<br>";
echo floor(2.336);
echo "<br>";

echo chop("              大王带   我 去       巡山             ");

echo "<br>";
echo ltrim("         大王带   我 去       巡山         ");
echo "<br>";
echo "<br>";
echo "<br>";
echo "<br>";
echo "<br>";
echo "<br>";
echo "<br>";
echo "<br>";
echo "<br>";


?>